Home / 18,967.18-28,449.70-5,819.52

Finding the Fourth Proportional to 18,967.18, 28,449.70 and 5,819.52

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Solution

The fourth proportional to 18,967.18, 28,449.70 and 5,819.52 is: 8,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.18 : 28,449.70 = 5,819.52 : x
  2. Step 2: Convert to fraction form
    18,967.18/28,449.70 = 5,819.52/x
  3. Step 3: Cross multiply
    18,967.18x = 28,449.70 × 5,819.52
  4. Step 4: Simplify right side
    18,967.18x = 165,563,598.14
  5. Step 5: Solve for x
    x = 165,563,598.14/18,967.18
  6. Step 6: Final answer
    x = 8,728.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.